Memomon

Are you modifying the order_id property of the metadata perhaps or removing metadata using the Stripe plugin filters?
No

Are you testing on a localhost like a laptop? If you’re using the same Stripe account for doing test orders on a local machine or a staging website, then the webhook is going to the url configured for the account.
No

If you go to the stripe.com > developers > events page you can see the webhook that triggered that log entry. Look at the body of the request, specifically the metadata. Is there an order_id property in the metadata?
Yes
but “order”: null,

Thank you for following up on this issue
These requests are from an application built on the flutter platform
Depends on your plugin
With only one website